PROBLEM TO BE SOLVED: To provide a CPAP apparatus in which downsizing and weight saving are combined with sufficient reduction of an inflow sound.SOLUTION: The CPAP apparatus comprises: a casing 11 comprising an air inflow port 11a and an air outflow port 11b a turbofan 50 that is incorporated in the casing 11 and sucks and sends out air and a silencer 40 that is composed of acoustic absorbents 41 and 42 incorporated in the casing 11 and comprising a thin-plate-shaped air channel 411 to reduce the inflow sound of the air flowing in from the air inflow port 11a and send the air into the turbofan 50.SELECTED DRAWING: Figure 15COPYRIGHT: (C)2016,JPO&INPIT【課題】小型化・軽量化と流入音の十分な低減との双方を両立させたCPAP装置を提供する。【解決手段】空気流入口11aと空気流出口11bとを有する筐体11と、筐体11に内蔵された、空気を吸入して送り出すターボファン50と、筐体11に内蔵された、薄い平板形状の空気流路411を有し、空気流入口11aから流入する空気の流入音を低減してターボファン50に送り込む吸音材41,42からなるサイレンサ40とを備えた。【選択図】図15
